Related Questions
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Which of the following is an inert gas?
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The lightest metal is
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On moving across a period from left to right the ionisation energy increases because
A. value of principal quantum number increases
B. effective nuclear charge increases
D. nuclear charge increases
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4
Which of the following has maximum ionisation energy?
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Lother Meyer plotted a graph of
A. Atomic volume versus atomic number
B. Atomic radii versus atomic weight
C. Atomic weight versus mass number
D. Atomic volume versus atomic weight
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4
In C, N, O and F the electronegativity
B. decreases from C to O and then increases to F
C. increases from O to C and then decreases to F
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Elements whose atoms have incompletely filled penultimate energy levels are known as
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4
Law of octaves was given by
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Which of the following has minimum ionisation energy?
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In the periodic table on moving from left to right across a period, the metallic character of elements
C. increases and decreases
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The general electronic configuration of s-block elements is
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Elements belonging to the same period are
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Which of the following have maximum size?
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Which of the following conform both cation and anion?
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In a Lother Meyer curve sodium occurs at
C. some point on the curve
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With the increase in atomic number in a period of the periodic table
A. electron affinity decreases
B. metallic character decreases
C. ionisation energy decreases
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Which of the following did not find a place in Mendeleef's periodic table?
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Second electron affinity of the elements is always
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Which of the following has minimum ionisation energy
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Which of the following has the maximum size?
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An atom of an element has electronic configuration , the element belongs to block
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Elements in the same vertical column has same
A. valence shell electronic configuration
B. electronic configuration
C. atomic number of isotopes
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In the Mendeleef's periodic table properties of the elements are the periodic function of their
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Modem Periodic Law was given by
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The differentiating electron enters in the penultimate energy level in the case of
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Which of the following elements have maximum electronegativity?
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The smallest ion amongst the following
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Which of the following has maximum ionisation energy ?
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Which of the following species have minimum size?
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, , and are isoelectronic, the order of increasing size is